Update README

README.md

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 # Proxmark3GUI
 ![downloads](https://img.shields.io/github/downloads/wh201906/Proxmark3GUI/total)  
 
-A cross-platform GUI for [Proxmark3](https://github.com/Proxmark/proxmark3) client
+A cross-platform GUI for [Proxmark3](https://github.com/Proxmark/proxmark3)/[Proxmark3 Iceman fork](https://github.com/RfidResearchGroup/proxmark3) client  
+
+(The [orignal Proxmark3 repo](https://github.com/Proxmark/proxmark3) has been unmaintained for a long time. I personally suggest using the [Proxmark3 Iceman fork](https://github.com/RfidResearchGroup/proxmark3))
 
 [中文介绍](doc/README/README_zh_CN.md)
 

doc/README/README_zh_CN.md

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 # Proxmark3GUI
 ![downloads](https://img.shields.io/github/downloads/wh201906/Proxmark3GUI/total)  
 
-一个自制的[Proxmark3](https://github.com/Proxmark/proxmark3) GUI，可在Windows/Linux/macOS系统下运行
+一个自制的[Proxmark3](https://github.com/Proxmark/proxmark3) GUI，可在Windows/Linux/macOS系统下运行，支持[冰人版](https://github.com/RfidResearchGroup/proxmark3)客户端和固件  
+
+(目前[官方版](https://github.com/Proxmark/proxmark3)已停更超过一年，推荐使用[冰人版](https://github.com/RfidResearchGroup/proxmark3)固件和客户端)
 
 [English](../../README.md)